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The Slime Molds: Myxomycetes a problem associated with organic mulch
Curtis E. Swift, Ph.D.
Colorado State University Extension,
Tri River Area
Summer is a time of beauty with flower gardens exhibiting all shades of color and texture. Even the various bark mulches used to shade the soil and retain moisture add greatly ... | <urn:uuid:357f2868-5ff7-470e-8a92-50234b8c91fb> | 2.8125 | 1,261 | Knowledge Article | Science & Tech. | 50.165356 |
Immunoglobulins (IG), T cell receptors (TR) and major histocompatibility (MH) appeared in the early jawed vertebrates about 450 millions years ago. These complex gene families are responsible of the specific (or adaptive) immune response in vertebrates.
The IMGT taxonomy tree describes the classification of the vertebr... | <urn:uuid:3b1e3490-3f7a-4297-9413-47b1c8c7bf51> | 2.90625 | 354 | Structured Data | Science & Tech. | 25.844439 |
Optimize with a SATA RAID Storage Solution
Range of capacities as low as $1250 per TB. Ideal if you currently rely on servers/disks/JBODs
The Java platform's garbage collection mechanism greatly increases developer productivity, but a poorly implemented garbage collector can over-consume application resources. In this ... | <urn:uuid:138eb265-6f50-4387-957d-e3f707190983> | 3.25 | 705 | Truncated | Software Dev. | 29.511436 |
Marble Chips and Acids
Date: Around 1999
I would be ecstatic if you have, or know of any site
that does, an investigation on the reaction between hydrochloric acid and
marble chips. (I am investigating how the concentration of acid affects
It is for my GCSE coursework, and as i have missed the last 2/3 months of
school... | <urn:uuid:bd492a79-a929-4761-867e-b392c6c14e7a> | 3.390625 | 904 | Knowledge Article | Science & Tech. | 59.013669 |
A habitable zone is the region around a star where an Earth-like planet can maintain liquid water on its surface. The habitable zone is the area that might potentially support life.
From the center of the earth to the far galaxies we find evidence that life arose from cosmic processes. The iron in our blood and the cal... | <urn:uuid:bd2d7aac-4c4f-413e-8a78-949b237fd8f9> | 3.96875 | 347 | Knowledge Article | Science & Tech. | 44.841675 |
A sphere clearly already has a uniform geometric structure: its geometry looks the same no matter where you’re standing on the surface. A doughnut surface, by contrast, is anything but uniform: a region on the outer edge of the doughnut curves in a way that’s reminiscent of a sphere, while a region on the inner ring of... | <urn:uuid:a844a1cd-44b3-4ddf-a4e1-7f6be528c845> | 3.65625 | 1,031 | Nonfiction Writing | Science & Tech. | 41.421724 |
May 15, 2009 | 44
If solar power is ever going to take off—and the world needs it to—photovoltaic cells will have to become a whole lot cheaper to produce.
Making solar cells from silicon, the most common approach, can be expensive and relatively inefficient at turning sunlight into electricity. As semiconductor manufa... | <urn:uuid:a5350b86-c306-450f-abc6-d3697b2e067f> | 3.46875 | 782 | Content Listing | Science & Tech. | 49.505876 |
Silicon dioxide, or silica, (SiO2) is another important example of a macromolecular solidA state of matter having a specific shape and volume and in which the particles do not readily change their relative positions.. Silica can exist in six different crystalline forms. The best known of these is quartz, whose crystal ... | <urn:uuid:06274f6c-b181-4228-8040-d6b8fdde7868> | 4.03125 | 214 | Knowledge Article | Science & Tech. | 42.193631 |
Holden Crater LayersHiRISE Image PSP_001468_1535
This HiRISE image shows fine layers of light-toned rocks on the floor of Holden Crater in Margaritifer Sinus (260S, 3260E). The layers are eroded along elongated north-to-south cliffs that reveal their total thickness approaches 100 meters in some places. Individual laye... | <urn:uuid:c215400c-c2ca-4ba9-9e65-3aebd31f050a> | 3.421875 | 601 | Knowledge Article | Science & Tech. | 46.250483 |
Inheritance diagram for IPython.kernel.map:
Classes used in scattering and gathering sequences.
Scattering consists of partitioning a sequence and sending the various
pieces to individual nodes in a cluster.
A class for partitioning a sequence using a map.
Returns the pth partition of q partitions of seq.
Partitions a ... | <urn:uuid:50ea5204-56fc-4a54-ade6-e8d418f1d5c9> | 2.734375 | 101 | Documentation | Software Dev. | 49.884116 |
Table of Contents:
Bell, E.T. Men of Mathematics. New York: Simon and Schuster. 1967.
As Bell himself points out in his introduction, this book is not a history of mathematics. It is instead the story of the lives of a few of the thinkers who have contributed greatly to the development of modern mathematics. As such it... | <urn:uuid:e70678b7-beb9-4c3f-ab80-ee6b5ceb1bc4> | 3.0625 | 700 | Content Listing | Science & Tech. | 35.143571 |
Ask Dr. Math
High School Archive
Dr. Math Home ||
Middle School ||
High School ||
Dr. Math FAQ
See also the
Dr. Math FAQ:
0.9999 = 1
0 to 0 power
n to 0 power
0! = 1
dividing by 0
Browse High School Number Theory
Stars indicate particularly interesting answers or
good places to begin browsing.
Selected answers to commo... | <urn:uuid:d056eb69-03ad-4840-9d4c-7b6d032168ff> | 3.390625 | 1,080 | Q&A Forum | Science & Tech. | 91.463072 |
I need the ans with relevant figure :
Two particles P and Q, are 30m apart with Q due north of P. Particle Q is moving at 5m/s in a direction 90 deg and P is moving at 7m/s in a direction 30 deg. Find
(a) the magnitude and direction of the velocity Of Q relative to P,
(b) the time taken for Q to be due east of P,to the... | <urn:uuid:b9497b8b-5e9c-4554-88c5-9ed24130241e> | 3.1875 | 95 | Q&A Forum | Science & Tech. | 82.196 |
Date: 1993 - 1999
Are planets made out of dirt or rock? Could another planet hit earth?
Well, dirt or rock is pretty much the same thing, isn't it?
Dirt is just ground up rock...
Actually, only the inner 4 planets of our solar system (Mercury,
Venus, Earth, Mars) are mostly made of rock, like the Earth is.
The outer pl... | <urn:uuid:b0c41e3d-a90d-47b4-9d4a-ed0425a9be85> | 3.40625 | 410 | Knowledge Article | Science & Tech. | 56.550795 |
This is a summary from Physics World of the paper: L J Wang et al. 2000 Nature 406 277-- "Wang and colleagues begin by using a third continuous-wave laser to confirm that there are two peaks in the gain spectrum and that the refractive index does indeed change rapidly with wavelength in between. Next they send a 3.7-mi... | <urn:uuid:94cf08cf-fa18-446d-8827-a3b68f0351f8> | 3.328125 | 382 | Q&A Forum | Science & Tech. | 55.174226 |
How do astronomers find planets outside our solar system?
The most successful search method used to date is called the radial velocity method. As a star is tugged to and fro by a planet's gravitational pull, astronomers measure a slight shift in the frequency of the star’s light.
Astrometry is another detection method.... | <urn:uuid:aee33dfe-ee5d-4959-b75f-e065fa014eb0> | 4.0625 | 417 | Knowledge Article | Science & Tech. | 47.670287 |
|Version 2 (modified by Philip, 14 months ago) (diff)|
The material system contains many components. Artists should just care about telling actors to use appropriate materials, and occasionally creating new material XML files by copying old ones and tweaking the uniforms. Graphical programmers might care about all the ... | <urn:uuid:164a8acb-a578-4c8c-81e8-a20bd2dfc448> | 2.796875 | 1,422 | Documentation | Software Dev. | 40.200433 |
Reefs in Crisis
By Barbie Bischoff
Humans have harmlessly harvested the rich wildlife on coral reefs for thousands, perhaps hundreds of thousands, of years. But in the late twentieth century, human pressures—including a population explosion and migration to coastal areas—have placed reefs at risk. In the Caribbean Basi... | <urn:uuid:f3542184-f5a7-41a3-999e-9b58ba969485> | 3.796875 | 1,277 | Truncated | Science & Tech. | 33.083922 |
A good target for binoculars and small telescopes,
Garradd (C/2009 P1) now shines in planet Earth's
a steady performer but just
below naked-eye visibility.
images like this composite from October 15
can find the comet with a lovely green coma,
sporting multiple tails, and lingering against
a background of faint stars.
... | <urn:uuid:9f50dbc8-a97a-4df9-983a-4fa4d855ff51> | 2.984375 | 183 | Knowledge Article | Science & Tech. | 39.09875 |
Table of ContentsOverviewIntroductionMaterials and MethodsDLS of Silica SamplesResults and DiscussionConclusionsAbout Horiba
The applications of silica nanoparticles are often determined by the particle size. Dynamic light scattering provides quick, precise and repeatable nanoparticle size data and therefore is an esse... | <urn:uuid:0d4f4276-e4aa-491e-9181-2884fb76a625> | 3.234375 | 1,142 | Knowledge Article | Science & Tech. | 23.450482 |
Before developing an application it needs to be somehow designed - on a piece of paper, using UML or just by creating a prototype. Another way to design the application logic is using pseudo-code.
What is pseudo-code and how to use it?
Pseudo-code is a non-formal language, a way to create a logical structure, describin... | <urn:uuid:d9e1b9e1-3b75-4063-83f6-8c130ad5cbdf> | 4.0625 | 686 | Q&A Forum | Software Dev. | 29.338026 |
Socket++ library defines a family of C++ classes that can be used more effectively than directly calling the underlying low-level system functions. One distinct advantage of the socket++ is that it has the same interface as that of the iostream so that the users can perform type-safe input output. See your local IOStre... | <urn:uuid:59ad2788-3968-4f42-814f-82b97a859213> | 2.875 | 173 | Knowledge Article | Software Dev. | 40.958455 |
You must know that a hemisphere is a half of a sphere. Below are the formulas to find the curved surface area of a hemisphere (without the base circle area) and the total surface area of a hemisphere (with the base circle area).
Curved Surface Area of Hemisphere:
You must know that the surface area of a sphere is 4πr².... | <urn:uuid:15bdef17-b0e7-47fc-b852-18eb235f06ba> | 3.96875 | 257 | Tutorial | Science & Tech. | 52.462283 |
- Libraries that emulate a UNIX environment by implementing the UNIX Application Programming Interface (API)
- Include files and development tools such as cc(1), yacc(1), lex(1), and make(1).
- ksh(1) (the Korn Shell) and over 250 utilities such as ls(1), sed(1), cp(1), stty(1), etc.
Most of the UNIX API is implemented... | <urn:uuid:726e071d-7d9f-4c33-9971-c7df86ee95a4> | 2.703125 | 345 | Knowledge Article | Software Dev. | 71.987835 |
WINTER ice can severely disrupt shipping around northern coastlines. But now a Canadian marine engineer claims he has found a way of controlling ice formation in ports and harbours. Per Andersen says his wave generator projector could help prevent seawater from freezing over by producing artificial waves.
When seawater... | <urn:uuid:f04996da-7a7c-43e9-9706-e05cdffb215d> | 3.734375 | 218 | Truncated | Science & Tech. | 42.555256 |
The CLOUD collaboration from CERN finally had their results published in nature
, showing that ionization increases the nucleation rate of condensation nuclei. The results are very beautiful and they demonstrate, yet again, how cosmic rays (which govern the amount of atmospheric ionization) can in principle have an aff... | <urn:uuid:23426049-b704-499e-b1ae-84bc7d80a8a6> | 3.09375 | 1,273 | Comment Section | Science & Tech. | 41.810865 |
Nov. 14, 2009 The Sun is a bubbling mass. Packages of gas rise and sink, lending the sun its grainy surface structure, its granulation. Dark spots appear and disappear, clouds of matter dart up -- and behind the whole thing are the magnetic fields, the engines of it all. The SUNRISE balloon-borne telescope, a collabora... | <urn:uuid:1ef22685-5bf9-4c3f-bc87-1d8c0ea2ba60> | 4 | 838 | Truncated | Science & Tech. | 30.830404 |
August 7, 2012 | 16
NASA's Mars Reconnaissance Orbiter, which yesterday delivered a stunning photo of the Curiosity rover descending on its parachute toward a safe landing, has followed up with another look at the mobile laboratory.
The orbiter's High-Resolution Imaging Science Experiment camera, or HiRISE, can zoom in... | <urn:uuid:afcfe746-687b-4d78-a305-eb1f1f179f30> | 3.515625 | 397 | Truncated | Science & Tech. | 35.091369 |
|Oracle® OLAP DML Reference
10g Release 1 (10.1)
Part Number B10339-02
REMBYTES(text-expression start [length])
The expression from which REMBYTES removes bytes. When the characters to be removed from text-expression contain embedded line breaks, these breaks are also removed. Other line breaks are preserved. Removed l... | <urn:uuid:48f2d364-8067-464c-83d1-739a080c796e> | 3.234375 | 321 | Documentation | Software Dev. | 47.404452 |
by Staff Writers
Washington (UPI) Aug 21, 2012
The ongoing U.S. drought may have one bright side, researchers said, as a record-low number of tornadoes have been recorded.
While drought and hot, dry weather has devastated agriculture this summer and led to the deaths of dozens of people, it has also decreased the outbr... | <urn:uuid:537a3930-07ae-470d-89bf-3b2cda489426> | 3.171875 | 564 | Truncated | Science & Tech. | 45.351363 |
The cold temperatures maintained in the Trinity River are beneficial to fish but may be problematic for foothill yellow-legged frogs. TRRP assesses foothill yellow-legged frog breeding distribution, timing, and survival of egg masses. In 2009, 50 egg masses detected in the mainstem river between Lewiston Dam and the No... | <urn:uuid:27c6907d-1ccf-449f-bd2c-3eba87fe018b> | 3.3125 | 375 | Knowledge Article | Science & Tech. | 43.319956 |
Have you noticed bright lights in the western sky, soon after sunset? Maybe you heard something somewhere about a planetary alignment. Maybe the Weekly World News you glanced at (first looking around to make sure nobody was watching) in the checkout line said something about the alignment, Bat Boy, Mel Gibson and the M... | <urn:uuid:3e2572d8-2e17-47b1-a02e-9fbdccda2d0c> | 2.828125 | 799 | Personal Blog | Science & Tech. | 50.03699 |
This week's highlight taxon is the Aquificae. Aquificae is a smallish group of thermophilic to hyperthermophilic bacteria whose main claim to fame is that ribosomal DNA phylogenies suggest that it is the earliest-diverging branch of the Eubacteria, making them a key player in the theory that life as a whole may be desc... | <urn:uuid:ee19a2bc-c093-41ed-84ab-959fa7d8fccf> | 3.921875 | 1,305 | Knowledge Article | Science & Tech. | 27.794741 |
INTRODUCTION TO OPHIOLITES
by Akira ISHIWATARI
(Dr., Assoc. Prof., Fac. Sci., Kanazawa University)
[Ishiwatari's Home Page] [Ishiwatari Labo Page] [Earth Science Department Page]
1. Ophiolite and Oceanic Lithosphere
2. Ophiolite Examples and their Occurrences
3. Petrologic Classification of Ophiolites
4. Ophiolites in ... | <urn:uuid:b76a0513-f2a5-4dbd-b5ee-e2d5e0df3eed> | 3.59375 | 2,007 | Academic Writing | Science & Tech. | 21.58901 |
The atomic rates for H and He-like ions are accurate for densities up to cm by taking into account the effects of 3-body recombination and lowering of the continuum ([Bautista et al. 1998], [Bautista et al. 1999]). However, these effects are not treated for other species which reduce the accuracy of the model results f... | <urn:uuid:5d758d71-16f4-4c92-80f7-fd9a1e8d9ff5> | 2.703125 | 134 | Documentation | Science & Tech. | 55.441284 |
Herschel offers two types of spectroscopic capability. PACS and SPIRE offer low to intermediate resolution spectroscopy covering the full Herschel wavelength range. HIFI offers high-resolution spectroscopy over the range from 157-625 μm (480-1910 GHz) using heterodyne techniques, although there is a small gap in covera... | <urn:uuid:283f22b0-7910-4295-b33e-b1a48f778fb3> | 2.90625 | 779 | Knowledge Article | Science & Tech. | 68.827857 |
19th October 2008 - 01:23 PM
I have taken a more simplistic veiw on black holes. If you reach the speed of light you couldn't be seen. If we think about objects that perform this: electrons, electricity, radar. therefore if we look at an object in the very dense part of a galaxy. that has acheived enough mass that the ... | <urn:uuid:2813e16e-c1a5-462f-88fd-126955c59523> | 2.84375 | 276 | Comment Section | Science & Tech. | 58.617 |
It would take as many human bodies to make up the sun as there are atoms in each of us. The geometric mean of the mass of a proton and the mass of the sun is 50 kilograms, within a factor of two of the mass of each person here.
Sir Martin Rees in a TED lecture. He suggests that humans have evolved to this scale, an alm... | <urn:uuid:6c9022f0-8834-47e6-b256-e8106f451a07> | 2.734375 | 152 | Personal Blog | Science & Tech. | 51.584577 |
File:Global Warming Map.jpg
From Global Warming Art
This figure shows the difference in instrumentally determined surface temperatures between the period January 1999 through December 2008 and "normal" temperatures at the same locations, defined to be the average over the interval January 1940 to December 1980. The ave... | <urn:uuid:0ba00016-e8be-410d-965b-34f471e3f1bc> | 3.140625 | 493 | Knowledge Article | Science & Tech. | 66.882556 |
In Oracle PL/SQL, OPAQUE refers to the abstract data types whose internal representation are maintained by Oracle. The opaque type available in Oracle is XMLType. The XMLType data is stored as series of bytes and Oracle does not expose this internal representation. There are separate methods provided by Oracle to acces... | <urn:uuid:fb88a9ab-a994-44ac-828c-bdf2198c060b> | 2.75 | 170 | Knowledge Article | Software Dev. | 38.0325 |
- Effects of nuclear orientation on fusion and fission in the reaction using 238U target nucleus (2010)
- Fission fragment mass distributions in the reaction of 30Si+238U were measured around the Coulomb barrier. At the above-barrier energies, the mass distribution showed a Gaussian shape. At the subbarrier energies, t... | <urn:uuid:942d9a12-cd91-4a47-b7e2-96da24118788> | 2.875 | 204 | Academic Writing | Science & Tech. | 25.851094 |
The size and type of prey taken by adult rainbow bee-eaters in the south-west of Australia
*Subscription may be required
Bee-eaters are known to ‘… have an astonishingly narrow spectrum of [prey] preference, in effect, for most of them, only honeybees and social wasps’ (Fry 1984). Their predilection for honeybees (Apis... | <urn:uuid:58d94a25-b914-441f-bdac-a2468605746b> | 3.4375 | 579 | Academic Writing | Science & Tech. | 36.880587 |
A warm climate with CO2 levels similar to today delayed ice sheets from forming over land in the Arctic until less than 2 million years ago. That’s the latest instalment in a climate history scientists are building using sediment from a lake created by a giant meteorite impact around 3.6 million years ago. The internat... | <urn:uuid:0345a0b9-b169-4e2d-86b3-06544233ba36> | 4.3125 | 462 | Personal Blog | Science & Tech. | 53.529208 |
Initially, I thought it was just a typo of iteration, as searching online for eteration yields no significant results.
But, then, I came across references that state that the term is coined by Crockford himself, in one of his talks.
Online, the only place where I could find an explanation is on his page, in The Factori... | <urn:uuid:86a81250-eb14-4b86-b072-19f24479ab59> | 3.171875 | 600 | Q&A Forum | Software Dev. | 35.709248 |
Pinning down the price of biodiversity
Conservation cost It would cost up to US$4.76 billion annually to protect the planet's threatened species from extinction, estimate researchers.
To establish and maintain protect areas, it would cost up to US$76 billion annually, they add.
An international team of scientists repor... | <urn:uuid:1b7f34b3-1850-4a15-b1d3-903f0bbeb967> | 2.9375 | 552 | Truncated | Science & Tech. | 54.416805 |
What is a virus
pd1 at mole.bio.cam.ac.uk
Thu Jun 5 03:34:22 EST 2003
> Is a virus a living organism or a biological machine?
> Two Mechanical Engineers.
I don't think there's a definite answer to this: is a cell a biological
machine? There's also quite a large continuum of things that are
defined as viruses (obligate ... | <urn:uuid:1721548f-6269-46dd-a4c4-4b6d30683ece> | 2.84375 | 316 | Comment Section | Science & Tech. | 53.716137 |
As the 25th leap second approaches (If you haven’t heard the news), there’s been a myriad of tweets and Facebook statuses joking about how to spend that extra moment when the clocks hit 11:59:60 UT. What many people don’t realize though is that a lot can happen in a second.
Let’s start with the basics. The SI definitio... | <urn:uuid:5dde930d-5f34-416c-9d75-96f2eb790898> | 3.078125 | 539 | Personal Blog | Science & Tech. | 53.544503 |
CS 307: Debugging
Debugging programs is an important skill for a computer scientist.
Here are some hints about debugging:
- Document clearly what each function should do. Write a comment
(after a semicolon) that states what the function does.
Write a comment describing each argument, unless it is obvious.
Write a comme... | <urn:uuid:dfd726a1-b68d-4c44-bec5-3076363704e5> | 3.5625 | 844 | Tutorial | Software Dev. | 64.189432 |
Pattern Maching in Programming Languages
Several functional programming languages (e.g. Scala, Haskell, and ML) support pattern matching of data objects. Recently Martin Odersky, the designer of Scala, explained pattern matching.
In a recent interview with Bill Venners at Artima.com Martin Odersky explained how pattern... | <urn:uuid:5a68a49d-5180-4370-a6a8-189973105fec> | 3.078125 | 468 | Personal Blog | Software Dev. | 58.497976 |
Climate Number: 28 Cubic Miles
Each year the United States pumps about 28 cubic miles of water out its groundwater aquifers – natural underground storage areas – for irrigation, drinking water, industrial purposes, etc. While about 84.6 percent of these withdrawals are recharged to the aquifers through natural recharge... | <urn:uuid:4c601af6-a61a-4c6c-ad8c-81aaa5fff3ff> | 3.6875 | 308 | Knowledge Article | Science & Tech. | 50.990625 |
5 List handling
Lists can only be built starting from the end and attaching list elements at the beginning. If you use the ++ operator like this
List1 ++ List2
you will create a new list which is copy of the elements in List1, followed by List2. Looking at how lists:append/1 or ++ would be implemented in plain Erlang, ... | <urn:uuid:fd8bceb1-b3c9-4059-8397-ec3bafebe778> | 3.5625 | 1,250 | Documentation | Software Dev. | 73.357873 |
Facts about Roentgenium
Facts about Roentgenium - Element included on the Periodic Table
Facts about the Definition of the Element Roentgenium
The Element Roentgenium is defined as...
Roentgenium is a chemical element in the periodic table that has the symbol Rg (formerly temporarily Uuu) and atomic number 111. It has ... | <urn:uuid:dcd0c033-6d19-4331-8532-94770c55b9ec> | 3.765625 | 774 | Knowledge Article | Science & Tech. | 28.727345 |
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Zoarcidae
(Eelpouts) > Lycodinae
Etymology: Lycodes: Greek, lykos = wolf + Greek, suffix, oides = similar to (Ref. 45335).
Environment / Climate / Range
Marine; demersal; depth range 19 - 1750 m (Ref. 58426). Polar; -1°C - ? (Ref. 4695); 83°N - 41°N
Size ... | <urn:uuid:dbb4f4ad-f95b-4a7e-8483-80ef3430efc4> | 2.765625 | 782 | Knowledge Article | Science & Tech. | 64.406838 |
Peter G. Brewer and Edward T. Peltzer
Monterey Bay Aquarium Research Institute
Franklyn M. Orr, Jr
This paper was prepared for presentation at the 2001 SPE Annual Technical Conference and Exhibition held in New Orleans, LA, Sept. 30-Oct. 3, 2001.
Substantial progress has been made in carrying out small-scale field expe... | <urn:uuid:d17fd370-f83f-4491-a9b4-bb8ac65fcfde> | 3.359375 | 361 | Academic Writing | Science & Tech. | 52.933333 |
Tiny plant-like organisms called zooxanthella live in the tissues of many animals, including some corals, anemones, and jellyfish, sponges, flatworms, mollusks and foraminifera. These microscopic algae capture sunlight and convert it into energy, just like plants, to provide essential nutrients to the corals. In exchan... | <urn:uuid:fcc585e4-96a0-44df-bc8a-2a25896eae4c> | 4.0625 | 183 | Knowledge Article | Science & Tech. | 37.974508 |
|Aug11-09, 10:21 PM||#1|
Thermal Physics - Dalton's Law etc
Inside the leaf of a plant, water vapour passes from the liquid phase to the vapour phase at the walls of the mesophyll cells, as shown in the figure (N/A due to copyright). The water vapour then diffuses through the intercellular air spaces and eventually exi... | <urn:uuid:58df235f-09f6-46c4-8119-bd5d30b783ac> | 3.078125 | 485 | Comment Section | Science & Tech. | 81.206667 |
July 20, 2012 | 2
The French–Italian Concordia research station in Antarctica is not your typical location for a medical practice, but working there has its perks. Physician Alexander Kumar and Erick Bondoux, two residents passing austral winter at Concordia, snapped this photo of the dramatic aurorae over the station ... | <urn:uuid:5558b341-af85-43a6-8154-4b01201dddc9> | 2.78125 | 393 | Truncated | Science & Tech. | 37.84707 |
Data reported by the weather station: 865650
Latitude: -34.48 | Longitude: -54.3 | Altitude: 18
|Main||Year 1983 climate||Select a month|
To calculate annual averages, we analyzed data of 360 days (98.63% of year).
If in the average or annual total of some data is missing information of 10 or more days, this is not dis... | <urn:uuid:b5fce022-7a0d-4eb5-8636-4c32b22598ce> | 2.71875 | 357 | Structured Data | Science & Tech. | 72.329555 |
Death of small stars
In a low mass star in its last stage, with a helium burning shell, stellar modelling suggests that the helium burning shell becomes unstable, and
burns in bursts. This causes the star to eject much of its outer layers.
The result is a ``planetary nebula'' which may last for 50,000 years before
it d... | <urn:uuid:27444902-b000-4f44-a088-d06f57b23227> | 3.296875 | 322 | Academic Writing | Science & Tech. | 52.866 |
More specifically, an ampersand (&) prepended to an argument name means that the argument will be passed by reference (http://www.php.net/manual/en/language.references.pass.php).
How to read a function definition (prototype)
Each function in the manual is documented for quick reference. Knowing how to read and understa... | <urn:uuid:cb0333e8-36c2-4aac-8ba6-9dc7970b49bf> | 3.625 | 565 | Documentation | Software Dev. | 63.52892 |
Brief Overview of Inertial-Electrostatic-Confinement Fusion
John F. Santarius
Fusion Technology Institute
Historically, most fusion research has focused on energy production in two basic configurations: magnetic confinement (magnetic fusion energy or MFE), and inertial confinement (inertial fusion energy or IFE). Each ... | <urn:uuid:991b2f30-a69c-483f-8157-834f38e53e6a> | 3.515625 | 2,095 | Academic Writing | Science & Tech. | 45.146494 |
[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]
Gets or sets the text trimming behavior to employ when content overflows the content area.
Assembly: PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.micros... | <urn:uuid:142c57b8-2daf-4b0e-af94-d1514b3b4bb4> | 2.71875 | 561 | Documentation | Software Dev. | 43.3908 |
Math Helps Forecast Crimes
April 30, 2012
Mathematicians are helping police find the locations where future crime is most likely to occur.
Saving Time, Money & Jobs
December 13, 2010
Operations researchers improved the efficiency of school bus routes while minimizing the amount of time the students ride. Researchers ca... | <urn:uuid:05d312c1-8d75-40d4-8127-f133348f150f> | 2.984375 | 929 | Content Listing | Science & Tech. | 27.919861 |
Like Jupiter, it is a Gas Giant and so its visible surface is not solid. It is most well known for its dramatic and beautiful ring system. The rings are not solid, but are made up of many millions of small lumps of ice and rock, varying from a few centimetres to several metres across. These are all orbiting around Satu... | <urn:uuid:57487240-cce2-4531-9d88-611026d96252> | 3.65625 | 342 | Knowledge Article | Science & Tech. | 111.868995 |
Researchers examining DNA evidence gathered from permafrost soil samples collected north of Fairbanks, Alaska say that the woolly mammoth may have survived for thousands of years longer than the fossil record indicates. Writing in the Proceedings of the National Academy of Sciences, the researchers suggest central Alas... | <urn:uuid:203dfd2f-1845-4e56-b2bb-18c56bf8d4b3> | 3.484375 | 116 | Truncated | Science & Tech. | 41.135066 |
J. Emmett Duffy, a professor at the Virginia Institute of Marine Science and the College of William and Mary, writes from the coral reefs of Belize, where he is studying sponge-dwelling snapping shrimps.
Sunday, July 8
As the sun breaks the horizon, I sit in a wooden chair at the edge of the backreef, an eye on the wea... | <urn:uuid:85231c52-295c-4dff-8f70-15c900904cf9> | 2.8125 | 1,448 | Nonfiction Writing | Science & Tech. | 46.84544 |
In 2008, the solar cycle plunged into the deepest minimum in nearly a century. Sunspots all but vanished, solar flares subsided, and the sun was eerily quiet. As 2011 unfolds, sunspots have returned and they are crackling with activity. On February 15th and again on March 9th, Earth orbiting satellites detected a pair ... | <urn:uuid:174c30a1-4228-4db1-a84e-81b36bdd3a4f> | 2.78125 | 100 | Truncated | Science & Tech. | 58.506 |
May 17, 2013
The Navy can build a $100 million submarine training range off the coast of Southern Georgia and Northern Florida, a federal judge ruled Monday.September 11, 2012, Tuesday
A volcanic eruption in India may have been responsible for the disappearance of many marine animals about 200,000 years before the dino... | <urn:uuid:ce07a523-9bd9-4a01-9376-7787ae7b1288> | 2.859375 | 516 | Content Listing | Science & Tech. | 41.834364 |
Professor John H. Lienhard
PI at MIT
Professor Greg Rutledge
PI at MIT
Professor Hassan A. Arafat
PI at Masdar Institute
This project is focused on the development of a membrane distillation (MD) desalination technology. MD is a method of thermal desalination whereby a hot, saline, feed stream is passed over a micropor... | <urn:uuid:a5ff5a7c-9d2e-4b2e-8d63-cac49b6118eb> | 2.96875 | 425 | Academic Writing | Science & Tech. | 29.820336 |
The Barents Sea is a sub-Arctic ecosystem located between 70 and 80ºN. It connects with the Norwegian Sea to the west and the Arctic Ocean to the north. The average depth is 230 m and the maximum depth is approximately 500 m at the western entrance. The general pattern of circulation (Figure 2.1.1) is strongly influenc... | <urn:uuid:684fcbf0-c414-4cdb-85f7-9108e4e36fa3> | 3.859375 | 261 | Knowledge Article | Science & Tech. | 46.885897 |
A rapidly rotating super massive black hole has been found in the heart of a spiral galaxy by ESA’s XMM-Newton and NASA’s NuSTAR space observatories, opening a new window into how galaxies grow. Super massive black holes are thought to lurk in the center of almost all large galaxies, and scientists believe that the evo... | <urn:uuid:e48d24a5-c96b-4329-a093-cbb08ec5cd35> | 3.9375 | 1,289 | Content Listing | Science & Tech. | 52.427518 |
Real Science for Real People
What Playing In The Mud Can Reveal
Editor’s note: Beth Ravit has been contributing science-related articles to Hackensack Tidelines for years. In light of her recent achievement—the attainment of her doctorate degree in environmental science—she was asked to focus this issue’s “Real Science... | <urn:uuid:22d27ca0-8f86-4981-85ce-6290e2d3afbf> | 3.109375 | 813 | Nonfiction Writing | Science & Tech. | 35.321117 |
One aspect of tundra plants that is highly sensitive to slight changes in temperature is phenology, the timing of key life-history events such as bud burst, leaf growth, flowering etc. In highly seasonal environments, such as the Arctic, timing key phenological events with the appropriate climate is essential for plant... | <urn:uuid:133d70e9-45d5-4a65-b898-f935bc328aab> | 2.75 | 310 | Academic Writing | Science & Tech. | 23.311492 |
PostgreSQL manages database access permissions using the concept of roles. A role can be thought of as either a database user, or a group of database users, depending on how the role is set up. Roles can own database objects (for example, tables) and can assign privileges on those objects to other roles to control who ... | <urn:uuid:8e748fea-9831-459c-b1cf-19a9f139a648> | 3.21875 | 187 | Documentation | Software Dev. | 48.728916 |
Science & Astronomy Archive
04 April 2013, 07:00 AM ET
Mars is on the other side of the sun from Earth, making communications difficult.
03 April 2013, 06:36 PM ET
Astronomers know more about what dark matter is not than what it actually is.
03 April 2013, 05:36 PM ET
The potential dark matter find announced today woul... | <urn:uuid:512200be-1385-453f-9e48-6ac2209dd864> | 2.734375 | 902 | Content Listing | Science & Tech. | 64.514773 |
Tracing Math's Evolution
Print this page, and use it to help you complete the lesson.
Your group will choose one of the mathematicians you researched and develop a presentation about him/her. You will share your presentation with the rest of the class.
Decide on jobs for each member of your group. All of you should be ... | <urn:uuid:c0d3c49c-0f41-49ee-a237-35db9d32a7cd> | 4 | 255 | Tutorial | Science & Tech. | 60.761111 |
Narrator: This is Science Today. Commercial harvesting of fish and wildlife is quickly reshaping the wild populations that remain due to the practice of harvesting vast numbers of species and targeting large, reproductively mature individuals. Those were the findings of a novel study led by Chris Darimont of the Univer... | <urn:uuid:142772dd-2f58-474f-9103-a3b0275640cd> | 2.90625 | 194 | Audio Transcript | Science & Tech. | 27.488333 |
|If a straight line is cut at random, then the square on the whole equals the sum of the squares on the segments plus twice the rectangle contained by the segments.|
|Let the straight line AB be cut at random at C.
I say that the square on AB equals the sum of the squares on AC and CB plus twice the rectangle AC by CB.... | <urn:uuid:21774e62-92fa-40b0-976f-40f0388203b6> | 3.53125 | 595 | Academic Writing | Science & Tech. | 86.448415 |
Chemistry of Carbon
Organic chemistry involves structures and reactions of mainly carbon and hydrogen. Inorganic chemistry deal with interactions of all other pure elements besides carbon, amongst geo/biochemistry. So where does inorganic chemistry of carbon fit in? The inorganic chemistry of carbon also known as inorg... | <urn:uuid:48804896-2b08-4023-a316-e89624848222> | 3.734375 | 467 | Knowledge Article | Science & Tech. | 35.853321 |
||This article needs attention from an expert in Computer science. (November 2008)|
|Part of a series on|
Packing problems are a class of optimization problems in mathematics that involve attempting to pack objects together into containers. The goal is to either pack a single container as densely as possible or pack al... | <urn:uuid:c2b0b124-3a8d-4640-8733-e7f247070904> | 3.953125 | 3,250 | Knowledge Article | Science & Tech. | 58.511311 |
Family: Papilionidae, Swallowtails view all from this family
Description The larva is green with two false eye spots on the thorax. It has a few blue spots on the first abdominal segment to the eighth segment. It also lives in a leaf shelter. (The larva is almost identical to the caterpillar of the Spicebush Swallowtai... | <urn:uuid:2026add9-af50-449b-89bc-def3a1b4d73a> | 2.90625 | 211 | Knowledge Article | Science & Tech. | 51.796091 |
Interprets the bitwise representation of
source in memory as if it is the representation of a variable or array of the same type and type parameters as
This is approximately equivalent to the C concept of casting one type to another.
Fortran 90 and later
result = transfer(source, mold[, size])
source- Shall be a scalar... | <urn:uuid:3dd913f6-f829-4836-9f9b-e04e6e5cbd41> | 3.34375 | 549 | Documentation | Software Dev. | 44.730481 |
Before we can start star-gazing, we need to define some basic directions and terminology, as well as a system for measuring time. This section also introduces the charts astronomers use to represent the entire night sky.
Background Reading: Stars & Planets, p. 13 & 14 (Star positions); p. 16 & 17 (Appearance of the sky... | <urn:uuid:028a2bcf-91a6-4868-ad76-b19ae0a8cb9b> | 4.125 | 2,416 | Tutorial | Science & Tech. | 64.167701 |
See also the
Dr. Math FAQ:
Browse High School Discrete Math
Stars indicate particularly interesting answers or
good places to begin browsing.
Selected answers to common questions:
Four-color map theorem.
How many handshakes?
Squares in a checkerboard.
- Contrapositive, Converse, Inverse [06/10/1999]
How can I write the... | <urn:uuid:ca49bc4b-bb5e-4713-9d66-606b5c4dccf9> | 2.890625 | 2,034 | Q&A Forum | Science & Tech. | 69.922063 |
A common misconception is that in a double slit experiment, the electrons or the photons go through both slits at the same time and interfere with themselves.
Nothing of the sort ever happens and that idea doesn’t come from quantum mechanics. It is just meaningless to ask the question (from which slit did the particle ... | <urn:uuid:b236b7c1-89e1-46e9-8d6f-48afa069f73a> | 3.40625 | 597 | Q&A Forum | Science & Tech. | 47.004865 |
In the past, they’ve told me the threshold temperature for promoting more tropical cyclone growth is about 28 degrees Centigrade, which is about 82 degrees Fahrenheit.
(Image: The average tropical sea surface temperature (black) and an estimate of the sea surface temperature threshold for convection (blue) have risen i... | <urn:uuid:86a53dc6-5d67-403d-b29a-97252f305b8a> | 3.15625 | 409 | Personal Blog | Science & Tech. | 42.511085 |
This is the Hermann grid illusion. It’s a very well-known and simple optical illusion. When you look at the intersections of the white lines, you see illusory dark blobs.
The standard explanation for this has to do with retinal ganglion cells. These cells pool information from several rod and cone cells in the retina a... | <urn:uuid:eb3fb5ef-6cc3-461f-82cc-ef385e098fc8> | 3.59375 | 368 | Personal Blog | Science & Tech. | 50.216892 |
Solar Cycle Variation of the Interplanetary Magnetic Field Spiral
C. W. Smith and J. W. Bieber
The Astrophysical Journal, 370, 435-441 (1991)
Interplanetary measurements spanning the time interval from 1965 through 1987 and a distance range from 0.7 to 15.9 AU are employed to test the Parker theory for the large-scale ... | <urn:uuid:548535fb-78c8-4802-903a-5621cd7e8996> | 2.6875 | 364 | Academic Writing | Science & Tech. | 40.512083 |
Here lie familiar shapes in
On the left is an emission
cataloged as NGC 7000,
famous partly because it resembles our fair planet's continent of
The emission region to the right of the
North America Nebula
is IC 5070, also known for its suggestive outlines
as the Pelican Nebula.
Separated by a dark cloud of obscuring du... | <urn:uuid:934b7494-0da4-461b-ae0b-c0e72c66453a> | 2.78125 | 205 | Knowledge Article | Science & Tech. | 43.269541 |
World Ocean Census - Extract 24 - The demise of the great sharks
22 July 2010
Ecologists have long understood that a reduction in predators affects the entire food web, that complex network of interactions between plants and animals that tells us who is eating what or whom. Census researchers investigating this premise... | <urn:uuid:cee0911b-f890-403f-bf88-e867251d5178> | 3.796875 | 481 | Truncated | Science & Tech. | 40.445159 |
Two sequencing techniques were developed independently in the 1970s. The method developed by Fred Sanger used chemically altered "dideoxy" bases to terminate newly synthesized DNA fragments at specific bases (either A, C, T, or G). These fragments are then size-separated, and the DNA sequence can be read.
fred sanger,d... | <urn:uuid:66325172-f892-4f56-bd5f-4df635f3113b> | 3.4375 | 182 | Knowledge Article | Science & Tech. | 28.935686 |
Science Main Index
The nursery web spiders are found in many parts of the world. Their habitat includes woodlands or grassland areas with tall grass. The nursery web spider is yellowish-brown in color with a light to dark brown band down the middle of its back, and a slender and tapering abdomen. It looks somewhat like... | <urn:uuid:8b885637-cef7-42f8-934f-11cbd861ba7e> | 3.75 | 203 | Truncated | Science & Tech. | 67.255571 |
Section: GNU Development Tools (1)Updated: 2007-08-06Local indexUp
windmc - generates Windows message resources.
windmc reads message definitions from an input file (.mc) and
translate them into a set of output files. The output files may be of
A C header file containing the message definitions.
A resource file compila... | <urn:uuid:075fb037-e788-4799-9b1f-5835c4a48936> | 2.75 | 857 | Documentation | Software Dev. | 52.304915 |
Climate negotiations were dealt a bombshell at the weekend when ecologists reported that carbon emissions from the destruction of tropical forests are probably only half previous estimates.
If we are emitting less carbon dioxide from deforestation that's got to be good news, surely. The trouble is the findings seriousl... | <urn:uuid:93587c95-690e-4658-acb3-d4736fb78740> | 3.375 | 1,260 | Comment Section | Science & Tech. | 34.539372 |
The explanation that an asteroid started the evolution of multicellular life 580 million years ago instead of an extreme ice age looks to me, if not wrong, at least useless (3 May, p 17)
Surely tens of asteroids as big as the Lake Acraman one, or even bigger, struck Earth in the billions of years preceding that particu... | <urn:uuid:30cb8dd0-878e-4bb9-8407-8c3e0a4d2ca8> | 2.703125 | 192 | Truncated | Science & Tech. | 32.820635 |
ROB SIMCOE seems slightly nervous as he fishes a balloon from a canister of liquid nitrogen. "I haven't done this demonstration before," the astronomer admits, moving the balloon over to a nearby candle flame. The balloon is actually a galaxy. Heated by the candle, it should expand and pop, just as we think galaxies in... | <urn:uuid:dd5b831b-a400-4086-acd7-59e8c9f55a04> | 3.25 | 196 | Truncated | Science & Tech. | 56.700253 |
Peter Aldhous, San Francisco bureau chief
Over in California's Monterey bay, an unusual three-day cruise kicked off today. Marine biologists there are investigating what happens to sea-floor ecosystems when shipping containers are accidentally shed from cargo ships. With 10,000 containers lost at sea each year, that's ... | <urn:uuid:e0541166-3bfc-449d-8ca7-aca34098f199> | 2.875 | 699 | Nonfiction Writing | Science & Tech. | 33.474375 |
The death’s-head hawkmoth has one of the direst reputations of any insect.
The skull on the thorax, the yellow ribs on the abdomen and the cloak-like wings of the moth combine to produce an ominous image. Should the moth be disturbed, it hops about, shrugging its wings up and down, all the while making a high-pitched s... | <urn:uuid:8f8c9dee-55cd-4796-83ad-401ff85be6fd> | 3.34375 | 364 | Knowledge Article | Science & Tech. | 44.947659 |
Explanations are good. Here are mine, reprinted for convenience:
Throwing an exception is a very expensive operation--basically the most expensive thing short of calling external resources. Think of an exception as making the computer beep twice and pause for two seconds, then think if you actually want to use one in t... | <urn:uuid:8b24160a-9710-4790-8878-242059279aeb> | 2.796875 | 562 | Comment Section | Software Dev. | 52.142102 |
Returns an integer that represents the next character read from
at the end-of-stream or when an error occurs.
is identical to
and is included only as a convenience for those accustomed to using
one or the other when writing C programs.
The simple program,
copies standard input to standard output one character at a time... | <urn:uuid:2dac1616-6cfa-4b12-80f0-4e460ab9e0b9> | 3.15625 | 189 | Documentation | Software Dev. | 65.071313 |